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Note 11 - Income Taxes and Deferred Tax Asset/Liability (Detail) - The income tax expense in the accompanying condensed consolidated financial statements consists of the following: (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Current tax expense (benefit) | $ 588 | $ 1,639 | $ 6,410
Deferred tax expense (benefit) | (1,167) | (18,651) | 3,860
Total tax expense (benefit) | $ (579) | $ (17,012) | $ 10,270

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